Inventor

Rupert Edward von Haken Spence

Inventor

Calgary, CA

Overview

11→

Patents

1996–2003

Patent span

Chemistry

Primary field (CPC C)

Patents· 11 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C08Fprimary

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds37%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium27%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%

PatentTitleYear

6,649,558'Bis-phosphinimine catalyst'2003 6,440,890'Hydrocarbyl phosphinimine/cyclopentadienyl complexes of group IV metals and preparation thereof'2002 6,420,300'Catalyst having a ketimide ligand'2002 6,355,744'Cyclopentadienyl/phosphinimine catalyst with one and only one activatable ligand'2002 6,239,238'Bis-phosphinimine catalyst'2001 6,234,950'Nitrogen substituted phosphinimine ligand'2001 6,221,985'Solution polymerization of ethylene'2001 6,147,172'Phosphinimine/heteroatom catalyst component'2000 6,114,481'Catalyst having a ketimide ligand'2000 6,051,667'Olefin polymerization using a catalyst having a bridged cyclopentadienyl-phosphole ligand'2000 5,496,960'Process for production of bis-(pentafluorophenyl) borane and use thereof for producition of base free zwitterionic homogeneous Ziegler-Natta olefin polymerization catalysts'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996Patents assigned to UNIV GUELPH (1)· patent assignee history

1996Based in Guelph, CA· patent location history

2000–2003Patents assigned to NOVA CHEM INT SA (9)· patent assignee history

2000–2003Based in Calgary, CA· patent location history

2001Patents assigned to NOVA CHEMICAL INTERNATIONAL S (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NOVA CHEM INT SA	9	2000–2003
NOVA CHEMICAL INTERNATIONAL S	1	2001
UNIV GUELPH	1	1996

Locations

Location	Patents	Span
Calgary, CA	10	2000–2003
Guelph, CA	1	1996